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IB Chemistry SL 2.4.2 The bonding triangle Question Bank

Practise IB Chemistry SL 2.4.2 by using electronegativity differences to predict ionic, covalent or metallic bonding.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Use electronegativity values to classify the predominant bond in a binary compound.
  • Explain how electronegativity difference changes the ionic or covalent character of a bond.
  • Use data-booklet values to justify a bonding prediction with a clear calculation or comparison.

2.4.2—Bonding triangle question 1

[Maximum number: 1]

Iron(II) sulfide can be produced by heating powdered iron and sulfur together.

Outline why solid iron(II) sulfide is a polar covalent compound. Use sections 9 and 17 of the data booklet.

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